EVERYDAY SCIENCE

Detailed explanation-1: -Fish are aquatic vertebrate animals that have gills but lack limbs with digits, like fingers or toes. Recall that vertebrates are animals with internal backbones. Most fish are streamlined in their general body form.

Detailed explanation-2: -Fish are considered vertebrates (with a backbone), and most fish have scales, fins, and gills. Fish use their gills to breathe, but some types of fish have lungs as well, and can breathe out of water for long periods of time. Some can even absorb oxygen through their skin.

Detailed explanation-3: -Fish and Other Aquatic Vertebrates are members of the subphylum Vertebrata who spend the majority of their lives in freshwater, marine, or estuarine environments.

Detailed explanation-4: -The phylum chordata (animals with backbones) is divided into five common classes: fish, amphibians, reptiles, mammals and birds. Show examples of these groups and explain the characteristics that make one different from another.

Detailed explanation-5: -Flatworms, arthropods, sponges, insects are a few examples of Invertebrates. Mammals, fish, reptiles, amphibians, and birds are examples of Vertebrates.